Remove handles from ElementsAccessor::Set and friends

src/elements.h

Index: src/elements.h
diff --git a/src/elements.h b/src/elements.h
index 28bf0a199451a7fb2e014ff158a3ec3b3e4e0f9c..66a96e8f3ddd35c2b5a222cc05545b738057bd16 100644
--- a/src/elements.h
+++ b/src/elements.h
@@ -175,8 +175,8 @@ class ElementsAccessor {
                                      uint32_t index) = 0;
   virtual bool HasIndex(FixedArrayBase* backing_store, uint32_t key) = 0;
 
-  virtual void Set(Handle<FixedArrayBase> backing_store, uint32_t key,
-                   Handle<Object> value) = 0;
+  virtual void Set(FixedArrayBase* backing_store, uint32_t key,
+                   Object* value) = 0;
 
  private:
   static ElementsAccessor** elements_accessors_;